Do freshwater fish have ampullae of lorenzini?

Freshwater Fish do not have ampullae of Lorenzini, which are specialized electroreceptive organs primarily found in certain species of cartilaginous fish, such as sharks and rays. These organs allow these marine species to detect electric fields in the water, aiding in navigation and hunting. While some fish, like catfish, possess other forms of electroreception, they do not have the same structure as the ampullae of Lorenzini found in their marine relatives.